Pos1275 peritenon Thickening Is Associated With the Intensity of Manual Sports Activity

Abstract

Background:Peritenon enlargement has been considered as a specific ultrasound finding associated with psoriatic arthritis based on studies in patients. Recent observations in athletes have demonstrated the existence of this finding although its relationship with the type of physical activity performed has not been determined.Objectives:To determine to what extent manual physical activity is associated with the prevalence of peritenon thickening in the fingers of healthy athletic subjects.Methods:Thirty-five healthy young male volunteers were recruited from a local sports centre in the community of Madrid. All of them performed sports activities with their hands for more than 12 hours a week.A digital dynamometer was used to determine the flexion strength of the fingers of the dominant hand. A single observer performed an ultrasound scan of this hand to determine the presence or absence of a hypoechoic image surrounding the extensor digitorum tendon of the 2nd, 3rd, 4th and 5th fingers, according to previous definitions. Mean flexion strengths were compared with the number of positive ultrasound findings.Results:Fifteen volunteers (mean age 24.3 years, BMI 24.4) did not present peritenon enlargement (42.8%). The mean ± standard deviation of the fingers flexor strength according to the number of peritenon enlargement detected were 43.5 ± 6.2, 49.2 ± 3.8, 53.2 ± 1.64 and 63.0 ± 4.83 Kg for volunteers with none, 1, 2, 3 and 4 peritenon enlargements, respectively. (ANOVA P<0.001; Pearson’s coefficient 0.827, P<0.001). Correlation between BMI, body fat percentage or training hours per week and the number of peritenon enlargement detected was not demonstrated.Conclusion:Peritenon enlargement, also knew as peritenon tendon inflammation, is detectable by ultrasound scan in healthy subjects and it seems to be associated to the physical activity intensity, indirectly measured by the flexor strength of the fingers.References:[1]Gutierrez et al. Ann Rheum Dis. 2011;70:1111-4[2]Zabotti et al. Clin Exp Rheumatol. 2016;34:459-65[3]Husic et al. Ann Rheum Dis. 2014;73:1529-36Disclosure of Interests:None declared